datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,2001,07 0:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,07 1:30:00,30 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,07 2:30:00,28 ,       0,0.148001,0.005286, 0.02797
sgpcmbeC1.c1,2001,07 3:30:00,28 ,       0,0.056754,0.002994,0.011712
sgpcmbeC1.c1,2001,07 4:30:00,28 ,       0,0.009415,0.000336,0.001779
sgpcmbeC1.c1,2001,07 5:30:00,31 ,0.434882,7.911777,3.642183,1.951207
sgpcmbeC1.c1,2001,07 6:30:00,31 ,2.318575,18.86569,12.94023,4.406199
sgpcmbeC1.c1,2001,07 7:30:00,31 ,4.272148,37.78721,16.06879,7.575735
sgpcmbeC1.c1,2001,07 8:30:00,31 , 4.32324,50.26327,13.83242,10.13758
sgpcmbeC1.c1,2001,07 9:30:00,31 ,5.380344,51.70544, 14.3754,12.12201
sgpcmbeC1.c1,2001,0710:30:00,31 ,2.889935,54.62129,12.18874, 15.4917
sgpcmbeC1.c1,2001,0711:30:00,31 ,0.694374,70.07869, 13.8729,17.75412
sgpcmbeC1.c1,2001,0712:30:00,30 ,0.570475,73.47877,19.92035,  21.422
sgpcmbeC1.c1,2001,0713:30:00,31 ,1.576185,73.12679,25.89186,23.88716
sgpcmbeC1.c1,2001,0714:30:00,31 ,3.574745,86.65751,25.87193,21.97806
sgpcmbeC1.c1,2001,0715:30:00,31 ,5.313142,64.22855,23.39409,17.14072
sgpcmbeC1.c1,2001,0716:30:00,31 ,8.419632,55.55664,20.23431,13.68937
sgpcmbeC1.c1,2001,0717:30:00,31 ,5.655864,37.72374,15.50676,6.711173
sgpcmbeC1.c1,2001,0718:30:00,31 ,4.031582,32.10637,14.27549,4.653054
sgpcmbeC1.c1,2001,0719:30:00,31 ,       0,9.732594,6.737807,2.366773
sgpcmbeC1.c1,2001,0720:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0721:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0722:30:00,27 ,       0,       0,       0,       0
sgpcmbeC1.c1,2001,0723:30:00,27 ,       0,       0,       0,       0